Nutrient resorption is associated with leaf vein density and growth performance of dipterocarp tree species
Zhang, Jiao-Lin1; Zhang, Shi-Bao2; Chen, Ya-Jun1; Zhang, Yi-Ping1; Poorter, Lourens3; Zhang,JL (reprint author),Chinese Acad Sci,Key Lab Trop Forest Ecol,Xishuangbanna Trop Bot Garden,Mengla 666303,Peoples R China.; zjl@xtbg.org.cn
2015-05-01
发表期刊JOURNAL OF ECOLOGY
卷号103期号:3页码:541-549
摘要Nutrient resorption is important for the nutrient budget of plants, but little is known about which plant traits mediate nutrient resorption, how resorption efficiency is associated with other leaf traits and whether nutrient resorption has an impact on plant growth. In this study, 17 dipterocarp tree species were compared in a common garden experiment. N and P resorption efficiencies were regressed against suites of traits associated with phloem transport capacity (i.e. leaf vein density; D-vein), leaf nutrient conservation traits (e.g. leaf mass per area; LMA) and species growth rate. Across the dipterocarp species studied, N resorption efficiency (percentage N resorbed) was positively correlated with D-vein and leaf thickness. N resorption efficiency was also correlated with D-vein after considering phylogenetic effects. N resorption proficiency (N remaining in senesced leaves) was negatively correlated with D-vein, LMA, leaf thickness and palisade and spongy mesophyll thickness. Senesced-leaf N concentration was still negatively correlated with LMA and leaf thickness after considering phylogenetic effects. N resorption efficiency was positively correlated with both height and diameter growth rates. After considering phylogenetic effect, N resorption efficiency was marginally correlated with diameter growth rate. Green-leaf N concentration was positively correlated with height growth rate after considering phylogenetic effect. P resorption efficiency and proficiency were not related to any of the leaf morphological and anatomical traits, or to species growth rates.Synthesis. These results indicate that higher phloem transport capacity of the dipterocarp species is positively correlated with greater N resorption efficiency and that N resorption proficiency is closely linked with leaf nutrient conservation traits. Growth rates of the dipterocarps are more likely governed by photosynthetic rates associated with green-leaf N concentration than N resorption rates per se. Although P is generally deficient in tropical soils, it appears that N rather than P availability is the key limiting factor for the growth of the dipterocarp species.
关键词Common Garden Ecophysiology Nutrient Resorption Efficiency Nutrient Resorption Proficiency Phloem Transport Capacity Tropical Rain Forest Trees
资助信息National Natural Science Foundation of China [31270453, 31470470]; Yunnan Provincial Science and Technology Department [2012HB039]; CAS '135' programmes [XTBG-T01, XTBG-F01]
收录类别SCI
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/19383
专题资源植物与生物技术所级重点实验室
通讯作者Zhang,JL (reprint author),Chinese Acad Sci,Key Lab Trop Forest Ecol,Xishuangbanna Trop Bot Garden,Mengla 666303,Peoples R China.; zjl@xtbg.org.cn
作者单位1.Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Kunming 650201, Peoples R China
3.Wageningen Univ, Forest Ecol & Forest Management Grp, NL-6700 Wageningen, Netherlands
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Zhang, Jiao-Lin,Zhang, Shi-Bao,Chen, Ya-Jun,et al. Nutrient resorption is associated with leaf vein density and growth performance of dipterocarp tree species[J]. JOURNAL OF ECOLOGY,2015,103(3):541-549.
APA Zhang, Jiao-Lin.,Zhang, Shi-Bao.,Chen, Ya-Jun.,Zhang, Yi-Ping.,Poorter, Lourens.,...&zjl@xtbg.org.cn.(2015).Nutrient resorption is associated with leaf vein density and growth performance of dipterocarp tree species.JOURNAL OF ECOLOGY,103(3),541-549.
MLA Zhang, Jiao-Lin,et al."Nutrient resorption is associated with leaf vein density and growth performance of dipterocarp tree species".JOURNAL OF ECOLOGY 103.3(2015):541-549.
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